Machine for applying liquid to articles



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A wfill 7 M 5. J. FINN MACHINE FOR APPLYING LIQUID TO ARTICLES Filed June 14, 1952 6 Sheets-Sheet 5 mxwm April V 193%. s. J. FINN MACHINE FOR APPLYING LIQUID TO ARTICLES 6 Sheets-Sheet 6 Filed June 14, 1932 Patented Apr. 7, 1936 UNITED STATES PATENT OFFICE MACHINE FOR APPLYING LIQUID TO ARTICLES Application June 14, 1932, Serial No. 617,132

21 Claims.

This invention relates to machines for applying liquid to articles and is herein illustrated and described with particular reference to the applying of a liquid solvent or softener to a hard coating of cement which is carried on the margin of a sole so as to soften the cement preparatory to attaching the sole to the bottom of a lasted shoe.

In the manufacture of shoes the soles of which are attached by cement, it is customary to coat the margin of the upper or attaching face of a sole with pyroxylin cement, to allow the cement to become dry and hard, and subsequently to apply a liquid solvent to this coat of cement to activate it, the sole with the cement in this sticky state being then pressed into place upon the bot tom of a lasted shoe. It is desirable that the softening liquid should be applied uniformly to the coat of cement and that application of liquid solvent to the uncoated middle portion of the forepart and to the tread face of the sole should be avoided.

To this end the invention contemplates an improved machine for applying an excess of coating material, such for example as a liquid, to a sole having the face to which the coating is applied diverging from the horizontal, said machine including means for applying the coating progressively to localities on the sole above its lower edge, allowing the excess to drain from the sole Without soiling the tread surface, and provided with mechanism for moving the sole in a novel manner to cause the liquid to be applied along a substantially uniform width of the cement-coated margin thereof. In this way the liquid solvent tends always to run by gravity down the margin of the sole and is prevented from reaching either the uncoated middle portion of the forepart of the sole or the tread face of the sole.

According to one feature of the invention there is provided a liquid-applying member, and novel means for maintaining a shoe sole in operative relation thereto and inclined to the horizontal, and, while so maintained, moving it past the applying member. In the illustrated construction, a sole is grasped loosely near its heel end by grippers which are mounted upon a traveling carrier; and then the carrier is moved first so as tomove the edge of the sole over a gage beside the applying member to apply liquid progressively along one edge of the sole, then along the curved edge at the toe portion, and then along the other edge of the sole. To accomplish this the carrier is moved first bodily in a direction lengthwise of the sole, is then swung about one of its ends through and is then moved bodily in the same direction as that of the first movement. And, in order to make sure that suificient liquid solvent shall be applied, the cycle of movement outlined above is then repeated in the reverse direction so that a second coat of solvent is applied over the first coat.

Inasmuch as the carrier swings about one of its ends, it is desirable that the toe end of the sole should be made to register with this end. In accordance with another feature of the invention the grippers, which grasp the sole or other article, are adjustable with respect to the traveling carrier. In the illustrated construction the grippers are carried by a bracket which is adjustably mounted upon the carrier, and means are provided for temporarily disconnecting the gripper bracket from the carrier to permit relative adjustment of these two members so that soles of diiferent lengths may be placed in the machine with their toe ends in register with that end of the carrier about which the swinging movement takes place.

The illustrated machine including certain details of construction and combinations of parts will now be described and pointed out in the appended claims.

Referring now to the accompanying drawings,

Fig. 1 is an end elevation of a machine in which the present invention is embodied, certain parts having been broken away;

Fig. 2 is an elevation of a portion of the front of the machine showing more particularly how the traveling sole carrier is swung through 180;

Fig. 3 is a front elevation of the machine with the front cover plate and the hand-wheel removed, the shaft 5l being shown in section;

Fig. 4 is a detail principally in section showing the starting mechanism in position to be operated to start the machine;

Fig. 5 is a detail of the same parts shown in Fig. 4 but in the positions occupied by them while the machine is running;

Fig. 6 is a vertical section taken on the line VI-VI of Fig. 8 viewed from the back of the machine showing all of the machine except the liquid-applying mechanism;

Fig. 7 is a plan of a sole showing the locality along the margin to which liquid is applied;

Fig. 8 is a plan view of the. machine;

Fig. 9 is a detail showing how the sole is supported at the toe portion while it is being swung;

Fig. 10 is a detail of the latch which holds the brush-driving clutch in engagement while the machine is running;

Fig. 11 is a detail of the mechanism for controlling the brush-driving clutch;

Fig. 12 is a detail in plan of the gripper bracket and a portion of the traveling carrier;

Fig. 13 is an elevation of the treadle-operated mechanism;

Fig. 14 is a vertical section of this mechanism on the line XIV-XIV of Fig. 13; and

Fig. 15 is a view partly in elevation and partly in section of a substitute mechanism for the brush by means of which the liquid may be flowed upon the sole instead of being brushed upon it.

Before proceeding to a detailed description of the machine a brief description of its purpose and mode of operation will be given. The general purpose of the machine is to apply a coating of liquid to a selected portion of an article; and the illustrated machine is particularly adapted to apply a liquid solvent to a hard coating of pyroxylin cement which is carried on the margin of the flesh surface of a sole so as to soften the cement preparatory to attaching the sole to the bottom of a lasted shoe. Referring to Fig.7 there is shown a molded sole I00 having thereon a hard coating of cement which extends from a point near the heel end of the sole along one margin of the sole, around the toe, along the other margin, and back to a point opposite the first point.

Referring first to Fig. 8, the sole is placed in the machine, as shown, with the heel end engaged loosely by grippers ll which are carried in a manner presently to be described by an elongated traveling carrier l9 made hollow to decrease its weight and to permit it to be readily actuated. The sole is on edge so as to be inclined to the horizontal, and a rotary brush 20 supplied with liquid engages the lower margin of the sole near the heel end and is rotated crosswise of the sole to apply liquid from a locality on the face of the sole toward and to an edge thereof. The brush is caused to act upon the sole in this manner so as to ensure that the liquid will always run down toward an edge of the sole and will be prevented from reaching the middle portion 300 (Fig. 7) of the forepart of the sole. A rest or gage 269 (Fig. 6) keeps the edge of the sole in the desired relation to the brush thereby to treat a marginal portion of substantially uniform width while a roller 22 holds the sole against the brush. Referring now to Fig. 3 it will be seen that the toe end of the sole I00, when properly positioned preparatory to starting the machine, is in register with the rounded end of the traveling carrier I9. The sole having been thus placed in the machine, the carrier first moves horizontally to the left as viewed in Fig. 3, then rotates clockwise about its rounded toe end, and then moves horizontally to the left again until the brush is operating upon what was the upper margin of the heel portion of the sole but is now the lower margin. Liquid has thus been applied over the entire margin of the sole except at the heel end; and the carrier is in an extreme left-hand position. The cycle of movement, which has just been described, is then reversed to apply a second coat to the same margin of the sole. In this second cycle, which takes place in the reverse direction, the carrier moves first to the right, then swings counterclockwise 180 about its rounded toe end, and then moves again horizontally to the right and comes to rest in the position shown. The margin of the sole thus receives two applications of liquid extending from a locality on one side of the sole near the heel end thereof, around the toe portion and back to a locality near the heel end opposite to the locality at which the application began.

Referring now to Figs. 3 and 8, there may be seen the construction of the traveling sole carrier l9, upon which a gripper carrying bracket ll is adjustably mounted in a manner and for a purpose later to be described, consists of an opensided member having a normally horizontal upper wall I9 and a normally horizontal lower wall I9 connected at their right-hand ends by a curved wall I9 and a vertical back wall I9 This traveling carrier normally occupies the position shown (Fig. 3), when the machine is at rest, with the lower wall I9 resting upon two rubber-covered rolls 2| (see also Fig. 1) fast respectively to shafts 23, 23 which have fast respectively to their outer ends pinions 25, 25. Located inside the hollow open-sided traveling carrier I9 is a small rubber-covered presser roll 2'! loosely mounted by means of a ball bearing upon a stub shaft 29. This stub shaft (Figs. 1 and 2) is carried at the outer end of a slide 3| which is vertically slidable on the front cover plate 33 of the machine in guide brackets 35. The vertical slide is also guided by a pin 31 which extends into a vertical slot 39 in the slide. A compression spring 4! rests with its upper end against a stationary lug 43 on the cover plate and with its lower end upon the upper end of an adjusting screw 45 threaded through the lower portion of the slide 3! into the slot 39. The small presser roll 2'! thus engages at all times some locality on the straight wall [9, the straight wall I9 or the curved connecting wall I9 said three walls really forming a continuous wall or flange of elongated U-shape, and exerts at all times a downward thrust, the force of which may be va ried by turning the adjusting screw 45. Consequently, when the pinions 25 are both rotated in one direction, the traveling carrier I9 is first moved horizontally in one direction by the rolls 2! until the curved portion at the end of the carrier is encountered by the small presser roll 2'! whereupon the carrier is swung through 180 about its curved end and is then moved again horizontally in the same direction. As will presently be explained, the direction of rotation of the pinions 25 is then automatically reversed and the traveling carrier then goes through a second cycle of movement in a direction which is the reverse of that of the first cycle. When the curved end of the traveling carrier [3 is encountered by the small presser roll 21, said roll pushes this curved end down to some extent into the space between the rubber covered driving rolls 2i; and

in order to insure that the wall of the carrier [9 shall be firmly gripped during the swinging movement of the carrier which then ensues, a filler piece 41 (Fig. 2) is located in the curved end of the carrier.

For the actuation of the sole carrier, the pinions 25 (Fig. 3) are driven by a large gear 49 fast to a rotary shaft 5| to which is also fast a second large gear 53, said last-named gear meshing with a worm 55 fast to a horizontal shaft 5? which is mounted for rotary and longitudinally sliding movement in a bracket 59, the pivotal mounting of which on the frame of the machine will be described later. Fast to the shaft 57 is a large middle clutch member 6!, and loose upon this shaft are two smaller clutch members 63, 65, one on each side of the large clutch member 6|. A round belt 61, driven continuously from a suitable source of power and extending around pulleys formed on the surfaces of the small clutch members and around a small idler 69 runs in the direction indicated by the arrows and thus rotates the two small clutch members respectively in opposite directions. In the position of the parts shown in Fig. 3 the shaft 57, together with the large clutch member 6| has just been pushed to the right from its neutral middle position into contact with the small clutch member 65, and the machine is just starting. The traveling carrier [9 will move to the left until the curved end I9 is reached. It will then swing clockwise about said curved end and afterward move again to the left thus completing the first cycle. At this time the shaft 51 with the large clutch member 6| will be moved to the left so as to be driven by the small clutch member 63, whereupon the traveling carrier l9 will go through its second cycle in a direction the reverse of that of the first. At the end of this second cycle the parts will be once more in approximately the position shown in Fig. 3 except that the large clutch member will be in neutral position and the machine will be at rest.

Before describing in detail how the machine is i started and how the direction of rotation of the driving shaft with its worm 55 reversed, a description of how the sole is located initially with its toe end in register with the curved end of the traveling carrier I9 will be given. During the operation of the machine, as has been described. the sole is held (Fig. 8) rather loosely by the grippers H so that it can pivot in the carrier sufiiciently to always ride on the gage 299. These grippers are pivoted at 13 to a gripper bracket TI and urged toward each other at all times by a tension spring 15 which is fastened at one end to the tail of one gripper and at the other end to the tail of the other gripper. Referring now to Figs. 12, 13 and 14, this gripper bracket 71 has a horizontally extending guideway to receive a horizontally extending guide bar 1'9 rigid with the traveling carrier i9, so that the traveling carrier may be adjusted with respect to the gripper bracket when a sole is placed in the machine prior to starting the machine, such an adjustment being necessary in view of the wide variation in the extreme sizes of shce soles, in order to cause the toe end of the sole to register with the curved end of the traveling carrier !9 about which the carrier and the sole are rotated through 180 in the manner which has been described above.

The gripper bracket 11', supporting the grippers ll by which the sole Hit is caused to follow the carrier 19, is releasably locked to the guide bar 1'9 of the traveling carrier I 9 by a small vertically movable block 8| having teeth on its upper edge which may be forced into engagement with teeth 93 formed on the lower edge of the guide bar 19. In Figs. 12, 13 and it the parts are shown in the positions occupied by them when the machine is at rest and before a sole has been placed in the machine. In this position of rest, the small locking block 8| is held up in engagement with the guide bar "59 by a cam 85 pivoted at B7 to the gripper bracket and held in the angular position shown by a leaf spring 99. This cam 85 has a horizontal finger which extends into a vertical slot 89 in a vertical slide bar 9!! to the lower end of which is attached a treadle rod 93 which is urged upwardly at all times by the horizontal arm of a bell-crank lever 99 pivoted at 99 to the frame of the machine. This lever is shown complete in Fig. 6 where it will be seen that it is urged at all times to rotate about its pivot 96 by means of a tension spring 98 and that a stop I92 limits its movement in a counterclockwise direction. Referring again to Figs. 12, 13 and 14, the gripper bracket is not only locked to the traveling carrier l9 but is also held from longitudinal movement in either direction so that, if the treadle rod 93 is pulled down far enough to swing the cam 85 in a clockwise direction (Fig. 14) by engagement of the finger on the cam. with the upper inclined wall of the slot 8%? to disconnect the gripper bracket from the traveling carrier l9, the carrier may be adjusted horizontally with respect to the gripper bracket. When the traveling carrier l9 has thus been disconnected from the gripper bracket 11 (and also as will presently be explained from its driving mechanism) the traveling carrier is may be adjusted horizontally to cause its curved end to register with the toe end of a sole which the operator has placed in the machine.

To this end, referring now more particularly to Fig. 13, the gripper bracket is held from movement to the left by contact with an abutment which will be described later. It is held temporarily from movement to the right by a catch 95 which engages a downturned lug on the gripper bracket 7?. said catch being pivoted at 97 to the frame and being urged upwardly at all times: by a compression spring 99. A link 19! furnishes means for pulling the catch down at the proper time to release the gripper carrier ll, this link being pivoted at its upper end at I93 to the catch and having near its lower end a vertical slot I95 to receive a horizontal pin H31 carried by a second vertical slide bar 599. vertical slide bar has a lost-motion connection with the vertical slide bar 9| through the horizontal arm of the bell crank lever 94 which extends through a comparatively wide opening in the side of the slide bar M9, the rounded end of the horizontal arm being received in a small opening in one side of the slide bar 9|.

When the treadle rod 93 is pulled down, the first part of its downward movement swings the cam 85 (Fig. 14) to unlock the gripper bracket 1'! from the traveling carrier l9 as has been explained, the slide bar being held in this part-waydown position while the traveling carrier i 9 is being adjusted to cause its rounded end to register with the toe end of a sole. After this adjustment has been made, the slide bar 9! is pulled all the way down. During the last part of this movement, the downward swinging horizontal arm of the bell-crank lever 94 (Fig. 13) strikes the lower wall. Iii of the opening in one side of the vertical slide bar E69 and pulls that bar down, thereby presently pulling down the link E95 and with it the catch 95 so that the gripper carrier ll is unlocked and the machine may be started. At the same time that the catch 95 is swung down, the grippers ll (Fig. 12) are permitted to close upon the heel end of the sole by the pullirv down of a pin H2 which is normally in raised position and holds the grippers open as shown, this pin (Fig. 13) being carried by an angle iron H3 which is fastened by screws lid to the slide bar I69. As the traveling carrier IS with the gripper bracket il approaches the end of its second-cycle of inc-veznent, the divergent faces H5 of the grippers ii straddle the pin H2 and are opened by the time the machine comes to rest.

The operator-controlled slide bar 9|, as has been explained, is first pulled down part way and held ther while the initial position of the travel- This second worm in mesh with the gear ing carrier I9 is being adjusted. It is then pulled all the way down to pull down the slide bar I09 which disconnects the catch 95 from the gripper bracket and pulls down the pin I I2 to permit the spring 15 to close the grippers upon the heel end of a sole which is being held in position by the operator. The slide bar 9! is then released by the removal of the foot of the operator from the treadle H4 (Fig. l) which is connected to the lower end of the treadie rod 93, and the slide bar 9| rises, but the slide bar I59 does not rise at this time. It rises, as will presently appear, when the direction of rotation of the driving worm 55 (Fig. 3) is reversed. With regard to the effect of the movements of the slide bar 9! (Fig. 14) the first effect is to engage the finger on the cam which rides up the inclined wall of the slot 89 and then rides up the flat face of the bar 9I. When the slide bar is released and returns to the position shown, the cam 85, under the in- ,fluence of the spring 83, resumes the position shown, and the gripper bracket 11 is once more locked to the carrier I9 so that it will move with said carrier when the carrier is actuated.

It has been explained above that when the treadle is depressed to pull the slide-rod 9| part way down, the gripper bracket 11 is disconnected from the traveling carrier I9 though still held from movement so that said carrier may be adjusted horizontally with respect to the gripper bracket. This horizontal adjustment is accomplished by turning the hand wheel II6 (Fig. 8) which is fast to the shaft 5|; but this of course can not be done until the gear 53 (Fig. 3) is disconnected from its driving worm 55. Provision is therefore made for disconnecting the worm 55 from the gear 53 when the slide bar 9| is pulled down. To this end, the casting 59 in which the shaft 51 is mounted for rotary and sliding movement, is mounted for swinging movement about the axis of a horizontal rock-shaft II1, the casting being fast to one end of said rock-shaft which has bearings in the frame of the machine, as best shown in Fig. 8. Returning now to Fig. 3, a compression spring II9 normally holds the casting 59 in the position shown with the driving shaft 51 horizontal and the 53. In order to swing the casting down about the axis of the rock-shaft II1 when the treadle rod 93 is pulled down part way, there is fast to said treadle rod a collar I2I having a hook to which the lower end of a heavy tension spring I23 is attached, the upper end of the springbeing attached to a hook on one end of the casting 59. Consequently, when the treadle rod is pulled down part way, as has been described, to free the gripper bracket from the traveling carrier IS, the worm 55 is disconnected from the gear 53 so that the operator may turn the shaft 5| freely in either direction to adjust the traveling carrier into the proper initial position with respect to the sole I 00.

In order to facilitate bringing the toe end of the sole into register with the rounded end of the traveling carrier I9 during this adjustment, a locator in the form of a plate I25 is provided. When the operator places a sole in proper position in the machine and holds it there while he depresses the treadle part way to unlock the gripper bracket from the carrier I9 and to disconnect the worm 55 from the gear 53, this locator I25 is swung yieldingly to the left (Fig. 3) until it contacts either with the toe end of the sole or with the rounded end of the carrier I9 depending upon the length of the sole and the position which the carrier occupies. If the locator I25 is in contact with the toe end of the sole it remains stationary, while the carrier is adjusted to the right. If the locator is in contact with the rounded end of the carrier, it follows the carrier during the adjustment of the carrier to the left. In either case the traveling carrier I9 is adjusted until both the toe end of the sole and the rounded end of the carrier are in contact with the locator. This locator I25 is fastened by a bracket I26 to the upper end of a bent lever I21 pivoted at I29 to the frame and at its lower end to the right-hand end of a horizontal link I3I, the left-hand end of which is pivoted at I33 to the lower end of the vertical arm of a bell-crank lever I35, the outer end of the horizontal arm of which is fast to the upper end of a tension spring I31. The lower end of the spring :31 is fast to a hook carried by the collar IZI on the treadle rod 93. The locator I25 is normally held in its outer, inoperative position by a tension spring I39 fast at one end to the lever I21 and at the other end to the frame. When the treadle rod 53 is pulled down, the locator I25 is swung to the left until it contacts either with the rounded end of the carrier I9 or with the toe end of a sole, this movement resulting because the spring I31 is somewhat stronger than the spring I39. It should be noted however, that, because of the presence of these two springs this locator may still yield in both directions. If therefore it is in contact with the rounded end of the carrier, it will follow the initial adjusting movement of the carrier in whichever horizontal direction the carrier may be adjusted. It will also of course follow any movement of the sole if it is in contact with the toe end of the sole and the operator moves the sole to the right or left.

While the operator holds the treadle rod 93 part way down, he turns the shaft 5| by manipulating the hand wheel II6 with one hand while, with the other, he holds the sole I00 in proper position with respect to the sole grippers, which are open at this time. He then pushes the treadle all the way down and releases it. The machine is then ready to start, the traveling carrier I9 having been adjusted into the proper position, the grippers having been closed on the sole, the gripper bracket having been again locked to the traveling carrier I9 and having been unlocked I? from the frame, and the worm 55 having been swung up into mesh with the gear 53. The machine however does not start until a lever MI has been swung up by the operator.

This starting lever and the mechanism for automatically reversing the direction of rotation of the shaft 51 are connected and will be described together. Referring to Figs. 3, 4 and 5, the machine is started by pushing the shaft 51 to the right thereby moving the large clutch member 6! into the position shown in which it is pressed against the small clutch member 65. This movement does not result from depression of the treadle. Instead, depression of the treadle stores up energy in a compression spring Hi3 (Fig. 4) at the left-hand end of the shaft 51 so that, when the lever MI is swung up, this energy is released to move the shaft to the right and thereby start'the machine, with the shaft gears and pinions rotating in the directions indicated by the arrows. This movement continues until the first cycle of movement of the traveling carrier I9 is completed, whereupon the shaft is moved to the left to reverse the direction of rotation of the shaft, gears and pinions so as to cause the second cycle of movement of the carrier to take place in the reverse direction.

Referring again to Fig. 4, the spring I l-3 is located in a sleeve I05 slidably mounted on the frame of the machine, said slide having extended into it a cylindrical plunger I41. The sleeve has a solid head at its right-hand end which contacts with a small ball carried at the left-hand end of the shaft 51. The plunger I01 is pivoted at its left-hand end at I49 to one end of one member I50 of a toggle, the knuckle of the toggle being indicated at l5I and the other member I52 of the toggle being fast to a rock shaft I53. If now the toggle is straightened, as shown, while the sleeve I45 is held stationary, the plunger I41 will compress the spring I43 and thereby load it by storing up energy in it so that, when later the sleeve is released, the stored up energy in the spring will move the sleeve and with it the shaft 51 and large clutch member BI to the right. The toggle is straightened by an abutment I55 which is integral with the vertical slide rod I09, said rod, as has been explained, having been moved down into the position shown when the treadle was depressed. The sliding sleeve I45 is held stationary during the straightening of the toggle by an auxiliary toggle comprising a member I51 pivoted at its right-hand end I59 (Fig. 4) to the frame and a second member which is part of the bell-crank lever I II and is pivoted to a lug on the sliding sleeve I45 at IEI, there being a tension spring I53 which tends at all times to urge this auxiliary toggle into the straightened position shown. If now the lever MI is swung clockwise the auxiliary toggle will be broken, and the loaded spring I03 will act to push the shaft 51 to the right and start the machine. The parts are shown in this position in Fig. 5.

In order to move the shaft 51 to the left so as to reverse its direction of rotation at the proper time, a mechanism much like that shown in Figs. 4 and 5 is provided except that there is only one toggle. Referring to Fig, 3, there is at the righthand end of the shaft 51 a sliding sleeve I05, a spring I I51, a plunger I69 and a toggle comprising members I1I, I13, the latter member being fast to a rock shaft I15 to which is also fast the lower end of an upright arm I 11. The upper end of this arm is pivoted at I 19 to one end of a horizontal link IBI, the other end of which is pivoted at I to an upright arm I05 pivoted at its lower end at I81 to the frame and at its upper end at I89 to the right-hand end of the long horizontal link IQI. The left-hand end of the long link IQI is pivoted to the upper end of an upright arm I93, the lower end of which is pivoted to the frame at 05. In order to hold the linkage just described, normally in the position of the parts as shown in Fig. 3 with the toggle I1I, I13, broken, a tension spring I91 is fast at its left-hand end to a pin on the link IBI and at its right-hand end to the frame. This linkage which, as will presently appear, operates to straighten the toggle I1I, I13 at the right-hand end of the shaft 51, operates also to break the toggle at the left-hand end of the shaft. To this end, there is pivoted to the upright arm I93 one end of a horizontal link I99, the other end of which has a lost-motion pinand-slot connection with the upper end of an arm 20I which is fast to the rock shaft I53 to which is also fast the member I52 of the toggle I50, I52.

In order to move the long link I9I to the left (Fig. 3) at the proper time so as to reverse the direction of rotation of the shaft 51 and hence to reverse the direction of movement of the carrier I9, said link I9I has fast to it an abutment 203 with the right-hand side of which a lug 205 (see also Fig. 6) on the gripper bracket 11 contacts at the end of the first cycle of movement of the traveling carrier I9. When the sole is about to finish its movement to the left at the end of the first cycle, this lug strikes the abutment 203 and moves the link Isl to the left (Fig. 3). This straightens the toggle I1 I, I13 at the right-hand end of the shaft 51 and compresses the spring I51. Movement of the long link I9I to the left also moves to the left the horizontal link I 99 near the other end of the shaft 51; and presently the right-hand end of the slot in this link engages the pin at the upper end of the arm 20I and breaks the toggle I55, I52 whereupon the auxiliary toggle composed of the link I51 (Figs. 4 and 5) and the horizontal portion of the bell-crank lever MI is straightened by the spring I63, the upward breaking of the main toggle I50, I52 acting through the abutment I55 to push up the slide bar I09 which was previously pulled down when the treadle was depressed. As soon as this toggle I50, I52 is broken, the compressed spring I51 at the other end of the shaft 51 pushes that shaft to the left to force the clutch member 6| against the small clutch member 63 so as to reverse the direction of rotation of the shaft. The extent of longitudinal movement of the shaft 51 is very small and is not prevented by the mesh of the worm 55 with the gear 53, this mesh being a loose one.

The same long horizontal link I9I (Fig. 3), movement of which in one direction reverses the direction of rotation of the shaft 51, is moved in the other direction at the proper time and to the proper extent to break the toggle I1I, I13 and thus stop the machine. To this end, there is an upward extension 201 at the left-hand end of the link I 5! with which a second lug 205 on the gripper bracket contacts just before the completion of the second cycle of movement of the sole when the gripper bracket is moving to the right. This pushing of the link I9I to the right acts through arm I85, link I8I, and arm I11 to break the toggle I1I, I13 and thereby allow the compressed spring I61 to expand so that the large middle clutch member BI is no longer held against the small clutch member 63. The lug 205 on the gripper bracket 11 which contacts with the abutment 203 to reverse the direction of rotation of the shaft 51 at the end of the first cycle is clearly shown in Fig. 6; and in the same figure appears the extension 201 on the link I9I which is engaged by the second lug 205 on the gripper bracket to stop the machine at the end of the second cycle. It is this extension 201 which, in cooperation with the catch 95, holds the gripper bracket from movement in either direction when the machine is at rest, the vertical slide bar I09 having then been moved up, by the push of the toggle I50, I52 on the abutment I55, to permit the spring 99 (Fig. 13) to swing the catch up into engagement with the gripper bracket 11 as has been described.

When the traveling carrier I9 is being swung through in the course of its movement, as shown in Fig. 9, its curved end is pushed down to some extent into the space between the rubber covered rolls 2|. The stationary rest or gage 209, before mentioned, supports the extreme toe edge of the sole but it is desirable to provide means for engaging the side edges of the sole adjacent to the toe end to prevent the toe portion of the sole from being displaced sidewise. To this end two guide fingers 2| 2 I 3 are temporarily moved into the position shown in Fig. 9 to aid in supporting the toe end of the sole. These fingers (Fig. 8) are the two arms of a yoke pivoted about a horizontal axis 2 [5, said yoke having a tail 2 I! which is engaged by the rounded end of the traveling carrier l9 during this swinging movement so that during said movement the fingers are swung up into the position shown in Fig. 9. As soon as the carrier resumes its horizontal position, the fingers 2H, 2l3 drop out of the way.

The applying brush 20 (Fig. l) is fast to a rotary horizontal shaft 23! to which is also fast a pinion 233 driven by a worm 235 on one end of a small rotary horizontal shaft 23?, said brush dipping into a solvent liquid 590 in a shallow container in which the level of liquid is maintained uniform by a barometric feed device indicated as a whole by the reference numeral 239. This barometric feed device may be of a suitable form,

and the details of its construction will not be described. A drain pipe 240 provides means for drawing off the liquid in the chamber just below the barometric feed device any time after the device has been removed.

It is desirable that the brush 20 should not rotate continuously but substantially only when the machine is running. In the illustrated construction the brush starts its rotation when the treadle of the machine is depressed and stops when the machine comes to rest. To this end the small brush shaft 237 (Figs. 8 and 11) has loose and slidable upon it a clutch pulley 24! driven continuously by means of a belt 242 from any suitable source of power, said pulley being urged at all times away from a clutch member 243, which is fast to the shaft 231, by a compression spring 244, there being between the pulley and the clutch member a friction washer 245. The clutch pulley 24! has an extension on the side opposite to the clutch member 245 which extends into the cupped end of a sleeve 246 which is loose and slidable on the shaft 231. This sliding sleeve 246 (Fig. 11) has a pair of flat localities near one end to receive the upright arms 24'! of a yoke in the form of a bell crank lever pivoted at 249 to the frame and having a horizontal arm to the outer end of which is fast the upper end of a tension spring 25!, the lower end of this spring being attached to the right-hand end of an arm 254 the hub of which is fastened to the far end of a small rock-shaft 255, as viewed in Fig. 11. To the near end of this rock-shaft is fastened the hub of a second arm 253 the outer end of which is located above the righthand end of the tail of the treadle H4 of the machine so that, when this treadle is depressed, the clutch is thrown in. A compression spring 251 acts at all times upon the upright portion of the bell crank lever 24! to swing said lever counterclockwise about its pivot 249 and thus tends at all times to throw out the clutch.

With the construction as thus far described, if the treadle H4 were released, the clutch would be immediately thrown out. Inasmuch, however, as the treadle is released, as has been described, just before the machine is started, means are provided for holding the clutch operative when the treadle is released. This means is a latch 259 (Fig. 10) pivoted to the frame at 26l' and urged to rotate clockwise about said pivot by a compressed spring 263. When, therefore, the treadle I I4 is depressed and the clutch thrown in, the lower end of the latch 259 moves into position over the horizontal arm of the bell crank 24'! so that, when the treadle is released, the clutch remains operative. It remains thus until just prior to the time when the machine comes to rest at which time the latch 259 is tripped by being rotated counterclockwise (Fig. 10) to permit the horizontal arm of the bell crank 24'! to swing up and release the clutch. The latch 259 is tripped by a, long lever 26| (Fig. 8) pivoted to the frame at 263' and normally held yieldingly in the position shown by a small tension spring 265 fast at one end to the lever and at the other to the frame. This long lever extends from the back of the machine, where the latch 259 is located, to the front of the machine, its forward end being located adjacent to the long link l9] longitudinal movement of which first in one direction and then in the other first reverses the direction of rotation of the shaft 51 and then brings the machine to rest as has been described above. At the forward end of the long lever 26! is pivoted a one-way latch 26! held normally in the position shown by a leaf spring 269, said latch being adapted to cooperate at the proper time with a small abutment 21! carried by the long link l9l.

With the parts of the machine occupying the positions shown in Fig. 8, the machine is just starting. When the first cycle of the traveling carrier I9 is about to be completed, the direction of rotation of the shaft 51 of the machine will be reversed, as has been described, by a lug 295 (Fig. 3) on the gripper bracket H, which lug engages the abutment 293 on the link l9] and pushes the link to the left. This movement of the link will carry the small abutment 21! (Fig. 8) past the small latch 26'! on the long lever 26l. In this movement of the abutment 21!, the small latch will be swung clockwise by the moving abutment 2'H but will presently be returned to the position shown by the leaf spring 269 when the small abutment 2'H has moved past the latch. During these movements the long lever 26| will not be swung about its pivot 253'. The machine now goes through its second cycle; and just at the end of this cycle the long link l9l will be moved to the right to stop the machine. During this movement to the right the small abutment 2H will again engage the latch 261, which cannot then swing about its pivot, and will therefore swing the long lever 26| counterclockwise (Fig. 8) so that its rear end (Fig. 10) will swing the latch 259 and thereby release the bell crank lever 241 whereupon the compression spring 251 (Fig. 11)

will throw out the clutch, and the liquid-applying brush 29 will come to rest.

The various mechanisms of the machine and their modes of operation have been described above individually and in small groups. A brief description of the operation of the machine as a whole will now be given. Assuming that the machine is at rest with the grippers 'Il open, the operator first places a sole in the machine in the desired position and depresses the treadle part way. This disconnects the worm 55 (Fig. 3) from the gear 53, swings the locator I25 into contact either with the toe end of the sole or with the rounded end of the carrier 19, and unlocks the gripper bracket 11 (Figs. 13 and 14) from the carrier l9. The operator, while still holding the sole with one hand, turns the hand wheel H6 (Figs. 1 and 8) with the other hand to cause the toe end of the sole and the rounded end of the carrier l9 to come into register. He next pushes the treadle all the way down to pull down the slide I (I9 (Figs. 13 and 14) whereby the pin H2 is pulled down to permit the grippers H to close upon the sole. During the same downward movement of the slide 159, the gripper bracket 11 is freed from the carrier H] by pulling down the catch 95, and the abutment I55 straightens the toggle 452, I52 (Fig. 4) thereby compressing the spring M3. Depression of the treadle has by this time started rotation of the brush 2!] through the lever 's (Fig. 11), and the latch 259 (Fig. 10) has swung into the position shown to insure that the brush will continue to rotate when presently the treadle is released. The operator now 1' leases the treadle, whereupon the slide 91 (Figs. 13 and 14) is moved up so that the gripper carrier ll is'again locked to the carrier I9 and the worm 55 (Fig. 3) is swung up into mesh with the gear 53. The brush is now rotating and the machine ready to start. The operator swings the lever Ml (Fig. 4) to break the auxiliary toggle which has thus far held the sliding sleeve I from movement, and the compressed spring I43 expands to press the large clutch member (it against the small clutch member 65. The traveling carrier l9 now moves to the left (Fig. 3) dragging the edge of the sole over the gage 259 until the rounded end of the carrier encounters the presser roll 21 whereupon the carrier swings clockwise through 180 and then moves again to the left. Just prior to the end of the left-hand movement, the lug 205 (Fig. 6) on the gripper bracket ll strikes the abutment 203 (Fig. 3), due to the fact that the carrier is has been rotated 180 from the position shown, and moves the long link l9l to the left, as viewed in that figure. This straightens the toggle MI, 173 at the right-hand end of the shaft 5'! thereby compressing the spring [6! and breaks the toggle I], I52 at the left-hand end of the shaft so that the expansion of the spring I61 moves the shaft to the left and reverses its direction of rotation. The breaking of the toggle I55, 152 at the left-hand end of the shaft 5? pushes up the abutment I55 and with it the slide E59 (Fig. 13). to effect upward movement of the pin H2 intooperative position whereby it will later open the grippers, and the catch 95 swings up into operative position later to engage the gripper carrier. The traveling carrier (Fig. 3) moves to the right until its rounded end encounters the presser roll 2! again whereupon the carrier swings counterclockwise through 180". During this swinging movement, as in the former swinging movement, the fingers 2| I, 2E3 (Fig. 9) are temporarily moved up into contact with the side edges of the sole adjacent to the toe end and beside the gage 299. The traveling carrier then moves again tothe right (Fig. 3),. Just prior to the end of this movement, the gripper bracket strikes the extension 201 of the long link lei and moves that link to the right to break the toggle ill, I I3 at the right-hand end of the shaft 5? so as to stop the rotation of that shaft. During this last part of the movement of the carrier H! to the right, the grippers H are opened by engagement of the pin H2 (Fig. 12) with the divergent faces H5 on the grippers. Movement of the link we: to the right (Fig. 8) also stops the rotation of the brush 213 when the small abutment 2H on the link I91 engages the latch 26? on the forward end of the lever 26I and swings said lever counterclockwise to disconnect the clutch which drives the brush. The machine thus comes to rest with the sole coated as indicated inFig. 7 and the grippers open ready to allow removal of the sole just treated and its replacement by another sole.

In Fig. 15 there is shown a liquid applying member which may be substituted for the brush so as to flow liquid upon the sole instead of brushing it on. In this form of the invention, the brush, its mounting, and the barometric feed are replaced by a receptacle 213 for liquid having leading from its bottom a pipe 215 located to deliver liquid upon one face of the sole at a locality near the lower edge thereof. A valve 271 provides means for controlling the flow of liquid, and a drain pipe 279 permits the liquid to be drawn off when desired from the shallow receptacle 28I which receives the drip from the pipe 215. mechanism for carrying the sole past the outlet of the pipe 279 is the same as that described above for carrying the sole past the brush, certain parts of this mechanism such as the traveling carrier l9, the presser roll 21 which engages the carrier, the sole-engaging roll 22, and the sole edge gage rest 289 being shown. In this form of the invention, the operator opens the valve 2?! just prior to starting the machine and closes it when the machines comes to rest.

Referring now to Fig. 7 and bearing in mind that the sole is maintained on edge during the application of liquid and that the liquid is always applied in such a way that it tends to run by gravity toward an edge of the sole, it will be seen that the middle portion 300 of the forepart of the sole is kept free from liquid, and that the coating is applied only along the desired portion of the margin.

Applicant makes no claim herein to any subject-matter common to this application and an application filed March 28, 1933, Serial No. 663,121, on behalf of Ernest W. Stacey upon a machine for applying cement to the marginal portion of a tennis shoe for the attachment of a foxing.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, and a carrier for a shoe sole mounted for swinging movement about a center adjacent to one of its ends in a plane substantially parallel to the plane of the sole to present successive portions of the margin of the sole to the applying member, said carrier having sole-gripping means, said gripping means being adjustably mounted on the carrier to permit soles of difierent lengths to be held thereon with one end in register with said end of the carrier.

2. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, means for gripping a shoe sole, an elongated carrier for the gripping means mounted for swinging movement about an end corresponding to an end of the sole thereon, said carrier and said gripping means being relatively adjustable to provide for soles of different lengths, a locator for facilitating proper relative adjustment of the gripping means and the carrier to bring the end of thesole into a predetermined relation to the end of the carrier, and means for imparting movement to the carrier and gripping means to cause the sole to move past the liquid-applying member.

3. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, means for gripping a shoe sole, an elongated carrier for the gripping means mounted for bodily movement and for swinging movement about an end corresponding to an end of the sole thereon, said carrier and said gripping means being relatively adjustable to provide for soles of different lengths, a locator for facilitating proper relative adjustment of the gripping means and the carrier, and means for imparting bodily and swinging movements to the carrier and gripping means to carry the periphery of the sole past the liquid-applying member.

4. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, means for gripping a shoe sole, a movably mounted carrier for the gripping means, said carrier and said gripping means being relatively adjustable to provide for soles of different lengths, a locator adapted yieldingly to engage an end of the carrier and an end of the sole when the two have been brought into registration, and means for imparting bodily movement to the carrier and gripping means to cause one side of the sole to move past the liquid-applying member and swinging movement about the end of the carrier which is in registration with the sole to carry the end of the sole past the applying member.

5. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, a carrier, driving means therefor, means adjustably coniected to the carrier for gripping a shoe part and holding it in operative relation to the liquid-applying member, and means for disconnecting the gripping means from the carrier and for disconnecting the carrier from its driving means to permit relative adjustment of the carrier and the gripping means.

6. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, a carrier, driving means therefor, means adjustably connected to the carrier for gripping a shoe part and holding it in operative relation to the liquidapplying member, and means for disconnecting the gripping means from the carrier and for disconnecting the carrier from its driving means to permit relative adjustment of the carrier and the gripping means while the machine is at rest and for reconnecting these parts prior to the starting or" the machine.

7. A machine of the class described having, in combination, a container for liquid, a liquid-applying member supplied therefrom, a carrier, driving means therefor, means adjustably connected to the carrier for gripping a shoe part and holding it on edge in operative relation to the liquid-applying member, and means for disconnecting the gripping means from the carrier and for disconnecting the carrier from its driving means to permit adjustment of the carrier with respect to the gripping means.

8. A machine of the class described having, in combination, a container for liquid, a liquidapplying member supplied therefrom, a carrier, driving means therefor, means adjustably connected to the carrier for gripping a shoe part and holding it in operative relation to the liquid-applying member, a catch for holding the gripping means stationary while the machine is at rest, and means for disconnecting the gripping means from the carrier and for disconnecting the carrier from its driving means to permit adjustment of the carrier with respect to the gripping means while the machine is at rest, and for reconnecting these parts and freeing the gripping means for movement with the carrier prior to the starting of the machine.

9. A machine of the class described having, in combination, a container for liquid, a liquidapplying member supplied therefrom, a carrier, driving means therefor, means adjustably connected to the carrier for gripping a shoe part and holding it on edge in operative relation to the liquid-applying member, a catch for holding the gripping means stationary with respect to the machine while the machine is at rest, and means for disconnecting the gripping means from the carrier and for disconnecting the carrier from its driving means to permit adjustment of the carrier with respect to the gripping means While the machine is at rest, and for reconnecting these parts and freeing the gripping means from its catch prior to the starting of the machine.

10. A machine of the class described having, in combination, a container for liquid, a liquid-applying member adapted to receive liquid therefrom, means for holding a shoe part in operative relation to said member and for imparting to said shoe part a cycle of movement in a manner to cause the margin along two edges and an end of the shoe part to be coated with liquid, and means for thereafter imparting to the shoe part a second cycle of movement in a direction reverse to that of the first cycle while maintaining the operative relation between the shoe part and the applying member thereby to cause a second coat to be applied over the first coat.

11. A machine of the class described having, in combination, a container for liquid, a liquid-applying member adapted to receive liquid therefrom, a carrier for moving the margin of a shoe part such as a sole past said applying member in operative relation thereto, driving means rotating in one direction to move the carrier and the shoe part through a cycle of movement, and means for automatically reversing the direction of rotation of the driving means to impart a second cycle of movement to the carrier and shoe part in a direction reverse to that of the first cycle while maintaining the operative relative between the shoe part and the applying member.

12. A machine of the class described having,

in combination, a treating member to the action of which the margin of a shoe sole is subjected, means for imparting to the sole a cycle of movement including movement of translation to treat the side margins and angular movement to treat the end margin, and means for thereafter impartingto the sole a second cycle of movement in the same path as that of the first cycle but in a reverse direction.

13. A machine for treating the margin of one face of a sole which comprises means for holding the sole in a position such that the face of the sole diverges from the horizontal so that liquid applied to the lower margin will run down toward the lower edge of the sole, means for applying liquid to said sole margin at an applying position, and means constructed and arranged to move the sole longitudinally, angularly and again longitudinally to bring successive portions of the margin of the sole into liquid-receiving position.

14. A machine for applying softener to the cement-coated margin of a face of a sole which comprises a softener applying means, a fixed guide adjacent thereto, means for loosely grasping one end of the sole to hold it in a position such that it diverges from the horizontal, means for moving the grasping means to drag the edge of the sole over said fixed guide as the softener is applied to the lower margin of the sole adjacent to the guide, and means for controlling said moving means to cause it to impart an angular movement to the sole thereby to treat the toe end thereof.

15. In a machine for treating a shoe sole for incorporation in a shoe to which the sole is attached chiefly by cement, said sole having a band of cement around the margin of the attaching face of the sole which has been allowed to dry, comprising a solvent applicator, means for holding the sole so that it diverges from the horizontal, and means for causing relative traversing movement between the sole and the solvent applicator to present a marginal portion of uniform width to the applicator thereby applying an excess of liquid solvent to the cemented area in the lower margin of the sole progressively during such traversing movement and allowing the excess solvent to drain from the sole without wetting the tread surface thereof.

16. A machine of the class described having, in combination, a container for liquid, a liquidapplying member supplied therefrom, a movable work carrier adapted to present a piece of work to said applying member, a gage opposite said applying member, spaced guide fingers located before and beyond said applying member with respect to the direction of movement of the work, said work carrier having means for loosely gripping one end of a piece of work having a rounded free opposite end, and means for moving said carrier to move the edge of the work along said gage past said applying member for the application of liquid to a marginal portion of the work and to turn the work with the rounded end resting on the guide fingers whereby the position of the work with respect to the applying member is maintained throughout its range of movement.

1'7. A machine of the class described having, in combination, liquid-applying means, means for moving a shoe part past said means in operative relation thereto including swinging the shoe part about a rounded end thereof, and means acting temporarily to engage the edge of the shoe part adjacent to the rounded end in a plurality of localities to facilitate supporting the shoe part during the swinging movement.

18. A machine of the class described having, in combination, liquid-applying means, means for moving a shoe part past said means in operative relation thereto including swinging the shoe part about an end thereof, and means operating temporarily to engage an edge of the shoe part adjacent to said end to facilitate the accurate swinging of said shoe part.

19. A machine of the class described having, in combination, liquid-applying means, a shoe part carrier having one end in register with one end of the shoe part, means for moving the carrier including means for swinging it about that end which is in register with one end of the shoe part, and an edge guide moved by the carrier in its swinging movement into engagement with an edge of the shoe part to facilitate the accurate swinging of said part.

20. A machine of the class described having, in combination, a treating tool, a gage positioned adjacent to said treating tool in a fixed relation thereto, spaced fingers located upon opposite sides of said gage and movable into and out of operative relation to the work, a carrier mechanism for a piece of work, said work piece having a rounded end, said carrier mechanism being constructed and arranged to grip loosely the work at a position spaced from the rounded end of the work and movable to drag the edge of the work over said gage past said treating tool and to turn the work to bring its rounded end into position for the operation of the tool, and means responsive to movement of said carrier mechanism for moving said fingers into operative position to engage the rounded end of the work.

21. A machine of the class described having, in combination, a tool for treating the margin of a sole, a movable sole carrier for presenting the side and end margins of the sole to the tool while maintaining the sole substantially upright, a gage adjacent to said treating tool, movable sole edge engaging guides located before and beyond said treating tool with respect to the direction of movement of the work, said sole carrier loosely gripping one end of the sole and movable to guide the edge of the sole across said gage and to turn the sole with the rounded end resting loosely on the gage, and means on the carrier for moving said guides into engagement with the sole near its end during the turning movement of the carrler.

SIDNEY J. FINN. 

